Sheet metal cylinders



(No Model.) 6 sheets-sheet 1.

Inventar M neas es.A

v N PLTERS Plwmvumngmmw', wawngum n r.

6 Sheets-Sheet 2.

(No Mode.)

W. THOM.

MACHINE EOE. ELAEGING SHEET METAL CYLINDEES. No. 398,673.

Patented Feb. 26. 1889.

ITM/enfer (No Model.) 6 Sheets-Sheet 3.

` W. THOM.

MAG-EINE EOE. ELANGING SHEET METAL GYLINDERS.

No. 398,673. Patented Peb. 26, 1889 6 Sheets-Sheet. 4.

(No Model.)

W. THOM.

MACHINE EUR. ELANGING SHEET METAL GYLINDEES No. 398,673. Patented Feb. 26, 1889,

In z/'en 02a "Wnesses.

N. PETERS, Phmo-Limagmphnr. washington u.'c.

6 Sheets-Sheet 5.

W. THOM.

MACHINE EOE. ELANGING SHEET METAL GYLINDEES,

(No Model.)

Patented Eeb. 26,1889.

u :SNO Wm nur?" A.

l.. 7, m mamy wad (No Model.) 6 Sheets-Sheet 5.

W. THOM.

MACHINE FOR ELANGING SHEET METAL CYLINDERS.

Patented Feb. 26, 1889.

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Wi new es.

N PETERS. Pnnmiimugmplwr, washingmn. |10

limiten TATES Atem? Orricn.

vWILLIAM THOM, OF INDIANAPOLIS, INDIANA.

MACE-HNE FOR FLANGING SHEET-METAL CYLl-NDERS.

SPECIFICATION forming part of Letters Patent No. 398,673, dated February 26, 1889.

Application filed March 27, 1888.

Be it known that I, IVILLIAM THoMi, oi' the city oli' Iildianapolis, county of Marion, and State ot' Indiana, have invented certain new and useful, Improvements in an Automatic lliachine Yfor Forming' Flanges on the Edges ot Sheet-detal Cylinders, such as maybe used .in the manufacture of stove-pipe elbows, of

which the following is a slvieeitieation.

)ly said invention consists of an automatic machine whereby the inflerator, being relieved from all labor in the operation of the machine, (merely havin;Y to insert and remove the el.- bow-sectioned is thus eiabled io handle the pieces with great rapidity and ease compared with such machines eiliployiiig` toot-power treadles. This machine may also be employed forformingl a great variety of iianges on sheetmetal cylinders.

Rel'errin;l to the accomninving drawings, which are made apart hereoi, and on which similar letters oi' reference iln'licat-e similar parts, lliguro l is a top plan view looking` down from dotted line l l in Fig. 2. ,l `ig. 2 is a side elevation ifromV the right in Fig. 2i. Fig. El is a section on the dotted line 3 f3 in Figs. l and "l. Fi ted lino -l- -t in ii 3, looking' to the right.. Fig. 5 a section ol. the lower part of the machine looking downward tfrom the dotted line 5 5 in Figs. 2, C3, and l. Fig'. ll is a section of the revolving head, showing.; its several working' parts and relative position to the head-plate l. through the dotted line o in Fig'. l. FQ. T is a plan of the revolving head. looking down, the disk C removed. Fig. S is a` cross-section oli' the revolving head Il through the dotted line o' S in Fig. 7. Fig'. Il is a. section on the dotted line .l il in Fig's. g and -L Fig. l() is a section. on thedotted line l() l() in Fig'. l. Fig. 1.1 is a section on the dotted line ll ll. in Fig. l. Fig'. l2 is a section through the dotted line l2 l2 in Fig. l, the head ll being omitted. Fig. 13 is a seetion through the i'lotted line ,lil 13 in Fig. 25. Fig. l-lis a` detail elevation,partlyin section, showing.)` the collar, the stamlard, the sliding rods, and the manner ol connecting` the latter to the collar.

In said drawings, A A A2 represent the supporting-traine for the top plate, I3,.and other mechanism, the top of said frame being l. is a` section on the dots Serial No. 268,713. (No model.)

secured to plate l, and the bottom to bridgetree AS. The driving-shattli has its bearings in the lug,` A, which is secured to the frame A2. On the outer end of said driving-shaft E are mounted the pulley or pulleys E i?, and toward the inner end of said shaft is the pinion Lwhich drives the spur-wheel J on the counter-shaft Il, (on which are also mounted the cams M, Mi, and N,) which has its bearings in boxes A3. The bevel-gear F, rigidly secured on the inner end of shaft. F., drives the bevel-gear G, which is rigid on the hub of the head il, which carries the slides and central mechanism, which is more ijmrticularlv d eseribed hereinafter.

The central stationauv standard, C., rests in the box AT, which in turn rests in the bridgetree A, and is horizontallyadjustable therein by means ol' the lugs A* and set-sere 's A, and has a vertical adjustment. by means of the set-screw A and the lock-nut Alf. The set-screw All", Fig. 2, holds the standard C rigidly and preventV its turning` in the box A7. Said stationar)v standard C has four `grooves, Il?, extemling along' its sides nearl'vits entire length, to receive the rods C', which are connect-ed at the bottom to the cOllarTbymeans ot' the pins or studs (l, which are held therein b v their squared shoulders in key-rings l), which are screwed on said collar'l. rl`he upper endsoil rods C2 are secured b v means of shoulders, as best shown in Fig. ti, to the cone C, which expands or throws out the frictionrollers f, mounted in the inner ends oi' sliding lforming-wheel carriers ci.

The supportine'dn'acket or bridge-tree I) is secured to the top plate or trame, l, and support s the centralV standard, C, and the head Il, which has its bearing,T in the collar tl. The collar if and standard C are adjusted orcentered by means ot the set-screws G3. The gear-wheel G is adjustable on the head of the huh ll by means oit the set-screw G2.

'lhe head ll consists, essentially, ol a eastiron head having;` grooves ll planed in its upper surface, forming ways to receive the sliding` carriers c, which are mounted in the slots c on the studs e", which are adjustable with a. nut, el, in said slots c and serve as journals for the forming-rollers In the outer ends of the carriers e3 is a small orifice, c, to receive the spiral spring' c2, which, be-

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ing compressed therein between the outside plate, e', (which is screwed to H,) and the inner end of the orifice e, keeps the carriers c5 pushed inward except when forced outward by the downward movement of the cone C3. The inner ends of the carriers e3 are provided with friction-rollers f, which have their axes on the studs g,-as best shown in Fig. 6.

The head H runs upon and around the central standard, C, and has its bearings on the collars H' H3, which are rigid with the standard C. The lower end of the hub Il is partly supported by the collar U, with the set-screw U' on the shaft C. On the top of the standard C (which is reduced in size) is the guiding-disk C4, which is capable of adjustment thereon by means of the set-screw C.

C5 represents metal which has been poured in molten condition on the top or upper surface of said disk or guide C4 (while an elbowsection is inserted thereon) to form an even bearing or support all around the inside of the elbow-section while the same is being operated upon in said machine.

The lever P is fastened to the lower frame, A, by the bolt P0, on which it swings, and is provided with a friction-roller, P', as a bearing for the cam M', and is connected with the upright rod P3 at P2. The top arm or lever, P6, has its fulcrum on the pivot P5 in the lug B', and is connected at its upper end by the screw PT to the hood Q. The screw P7 works loosely in the end of the lever P6, and when properly adjusted the limit of movement is regulated by the nuts P10. The spring P11 acts as a cushion for the stroke of the hood Q and compensates for the variation in the size of the elbow-sections, giving the stroke an elastic movement. The lower end of scraew PT is provided with a ball-joint, which has its bearing in the hood Q and the plate P9, which is secured by bolts P8 to the hood Q.

The lever O, as best shown in Fig. 2, is pivoted to the frame A at O0, and is held against the cam N by the spring V, and has a frictionroller, O5, in its curved end, which the cam N turns upon. The rod O' connects the camrod O2 and the lever O at O3 and Of. The cam-rod O2 has its bearing in the lug O7 and the top frame, B, its cam-face bearing and working upon the friction-roller B4, which revolves in a bearing, B2, pivoted by B6 to the ring B2, thus admitting of a swivel movement to accommodate the vibrations ot the ring B2 in its oscillations by the action of the cam O2 when pulled down and when returned by the spring q. The lug D', which is bolted to the bracket D, acts as a support for the fork-lever R, which is pivoted thereto by the stud D3. One end of said lever R partly surrounds and is connected to the collar T by the studs c, and the curved end is provided with a friction-roller, R2, as a bearing for the cam M2. The ends of the spring S are secured at R3 and S'. Said spring serves to return the levers P and R when released by the cams M and M2. The top plate, B,

has a groove or recess turned out on its upper surface to receive the ring B2, which is conneet-ed to the lower slides, 7a, which move between the Ways B5 bythe links j and the studs j' j2. The cast-iron jaw-plates 7L are secured to the slides k by means of the bolts h' and are capable of slight adjustment longitudinally through the slots in their outer ends and the set-screws i in the projections k'. The steel dies n are secured to the jaws h by means of the screws Z, and are raised and lowered by means of the set-screws m. The jaws 7i: are slid toward and from a common center in the ways B5 by the action of the ring B2. The gage-plate p (on which the elbow-section rests while being operated upon) is tit-ted into a recess, p2, in the top plate, B, (best shown in Figs. (3 and 12,) and has a vertical adjustment by means of the setfscrews p'.

The operation of my machine may be brieiy recapitulated as follows: As before stated, the machine is automatic and continuous in its operations whenever the power is applied to it, as will be better understood from the followingdescription. In Fig. 2 the elbow-section XV has been inserted while the hood Q is at rest; but when the friction-roller P' has traveled from M3 to MA1 on the idle periphery of the cam M and passes the point Mil said .cam suddenly forces down the lever P, and, through the connecting-rod P3 and the arm PG, the hood Q is brought down, bearing evenly on the elbow-section XV, thus holding it in proper position to be grasped and securely held by the steel dies u, which are simultaneously thrown in by the action of the cam N, depressing the lever O. The cam-rod O2 is pulled down by said lever O and connectingrod O', and theface of the cam O2, coming in contact with the friction-roller B4, causes the ring B2 to oscillate, and thus, through the links j and st-uds j' y2, the jaws 71; and the steel dies n are put into position, as best shown in Figs. 3 and 4t. While the two cams M' and N have put the hood Q and the steel dies yninto the proper position, as above described, the forming-rollers are next thrown out and put into operation on the metal cylinder W by the cam M2 engaging the friction-roller R2, forcing down the inner end of the fork-lever R', with the' collar T, and, through said collar and studs a, the inlaid rods C' are drawn down, and with them the cone-collar C3, which, bearing on the cone-rollers f, expands the sliding carriers e3, on which are mounted the forming-wheels e5, thus engaging them with the raw edge of the sheet metal cylinder against the steel dies n, thus completing the operation. On further movement of the driving mechanism the cam M relieves the lever P. Then the cam M2 relieves the lever R, and, lastly, the cam N relieves the lever O, when the springs S, V, and e2 return the hood Q, the cone C3, the sliding carriers e3, and the cam O2 to the former positions, respectively, for successive operations.

Having thus fully described my said inven- IOO IIO

tion,what l claim as new, and desire 1o secure i G. 'lf he combination,with the revolving head b v Letters Patent, is as Vt'ollows:

l. lnv an automatic machine l'or forming flanges on sheet-metal cylinders, the combinaV tion, with a rotating head carrying radiallysliding carriers in which are journaled the Hanging-rollers, ol' a support for the sheetmetal section, an arm, P, carrying a hood, Q, a lever, l), connected. to said arm, the rods C, carrying the cone-collar C and collar T, a lever, R, connected to the collar T, and a shaft havii'ig cams actuating the levers l and R, substantially as described.

2. The combination, with a rotating head carrying radial ly-sliding carriers in which are journaled the Hanging-rollers e", of a support i'or the pipe-section, a series of slides moving in ways toward and from said support, said slides having' jaw-plates 71, a ring, l?, to which the slides are linked, a canrslide, O2, working in a slot in said ring, a lever, O, connected to said slide, a cam, N, on counter-shaft K, rods t", carrying the cone-collar C and collar T, a lever connected to the latter collar, and a shaft having a cam. M2, substantially as described.

The combination, with the revolving head ll, carrying the sliding carriers e, having forming or l'langing rolls e5 and retracting-springs e2, ol the standard (l, the rods C, moving in channels in said standard and carrying the cone-collar (is, a lever, R, i'ulcrumed on a bracket, 1)', and connected to a collar, T, on the rods C', a cam, M?, on a counter-shaft, a support, C5, ter the pipe-section, slides having clamping-jaws 71 surrounding said support,

.. and means for moving said slides toward and troni the latter, substantially as described.

4. The combination, with the revolving head Il, having grooves Il?, ot the carriers e3, the studs e", adjustable thereon, the Hanging-rolls e", mounted on said studs, the rods C', carrying the conc-collar C3 and having the collar T, the leverR, cam lll? on counter-shaft K, asupport for the pipe-section, and movable jaws 't'or clamping the latter, suliistantially as described.

The coinbination,with the rotatinghead ll, having grooves, of the carriers e, the adj ustabl e :flan ng-rolls c5, the rods C', arranged in channels in the standard (i and carrying the cone-collar (f3 acting upon frietion-rollsf .ll havinewavs ll? ot the carriers ci havin(r 7 h 1. 5 7 l?) the adjustable rolls el and friction-rollsf, and provided with openings e to receive springs e2, of the rods C,`moving in channels in the standard C and carrying the cone-coller C3, said rods provided with the collar T, the lever l connected to said collar, the counter-shaft lx, having a cam, M2, a support :tor the pipesection, and means i'or clamping the latter upon said support, substantially as described.

7. The eombination,with the revolving head ll, having grooves, of carriers c, having grooves c, the Hanging-rolls e, mounted on studs er1, adjustable in said grooves, the sup port B, having ways B, the slides 7,', moving therein and having steel jaws n mounted on the clamping-jaws 71., the rods C', carrying the cone-collar C and connected to the collar T, a support, (l5, for the pipe, a lever, R, connected to the collar T, a cam, M2, on countershait K, aring, B2, moving on the support B and connected to the slides by links j, the cam-slide O2, the lever O, connected thereto, the cam N on shai't l, and the head-spring q, connected to support B and ring B2, respect` ively, substantially as described 8. In an automatic machine for forming iianges on sheetmetal cylinders, the supports c5 for the cylinder or pipe, the hood Q, the connected levers l and P", the latter having an eye which receives the rod l on the hood and provided with a cushion-spring, lm, and the cam M on the counter-shaft K, substantially as described,

t). The combination, with the lever P, arm P, and lever P, having an eye receiving the threaded rod l)T on the hood Q, the latter having a socket receiving a ball on said rod, ot the cushion-spring PU, the nut Pl, turningon the threaded rod P7, and the cam M on the counter-shaft K, substantially as described.

l0. The combination, with the top plate, l, having an orifice, ot' the gage-plate p, the setscrews p', the carriers es, having adjustable Hanging-rolls c5 and moving in ways in the revolving head Irl, the rods C', carrying the cone-collar C, bearing upon friction-rollsf, a support for the pipe, movable clampingjaws, a lever, R, Vconnected to a collar on the rods C, a cam, M2, on a counter-shaft, K, and means, substantially as described, for operating the clamping-jaws, substantially as dcscribed.

ln witness whereof l have hereunto set my hand, at Indianapolis, India-na, this i3d day of )Ia-rch, A. l). ILSSS.

WILLIAM TlIOM.

In presence et* AQUILLA Q. JoNEs, J. XV. Jones.

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